GB1003958A - Magnetrons - Google Patents

Magnetrons

Info

Publication number
GB1003958A
GB1003958A GB15577/62A GB1557762A GB1003958A GB 1003958 A GB1003958 A GB 1003958A GB 15577/62 A GB15577/62 A GB 15577/62A GB 1557762 A GB1557762 A GB 1557762A GB 1003958 A GB1003958 A GB 1003958A
Authority
GB
United Kingdom
Prior art keywords
april
height
sink member
magnetrons
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB15577/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SFD LAB Inc
Original Assignee
SFD LAB Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SFD LAB Inc filed Critical SFD LAB Inc
Publication of GB1003958A publication Critical patent/GB1003958A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/50—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field
    • H01J25/52—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode
    • H01J25/54—Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having only one cavity or other resonator, e.g. neutrode tubes
    • H01J25/55—Coaxial cavity magnetrons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/10—Magnet systems for directing or deflecting the discharge along a desired path, e.g. a spiral path

Landscapes

  • Microwave Tubes (AREA)

Abstract

1,003,958. Magnetrons. S-F-D. LABORATORIES Inc. April 24, 1962 [April 26, 1961], No. 15577/62. Heading H1D. A coaxial cavity-type magnetron comprises anode vanes 26 each having a height at its base less than the height of its free end portion. A lossy member 33, e.g. carbon-impregnated alumina or beryllia, is mounted a small distance from a heat sink member 25 and on heating expands into contact with the sink member. A magnetic pole-piece assembly 4, 22, 23 has parts 22 and 23 joined by the removable pins 24 and thus facilitates dis- and re-assembly by dismantling the joints 5-6 and 12-13 and thus obviates making the seal 11 internally. The anode structure is cooled by fluid circulating in the channels 45, and the cathode by fluid flowing between the members 10-15 and 15-12. Specification 1,003,959 is referred to.
GB15577/62A 1961-04-26 1962-04-24 Magnetrons Expired GB1003958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US105715A US3169211A (en) 1961-04-26 1961-04-26 Magnetron

Publications (1)

Publication Number Publication Date
GB1003958A true GB1003958A (en) 1965-09-08

Family

ID=22307404

Family Applications (2)

Application Number Title Priority Date Filing Date
GB15577/62A Expired GB1003958A (en) 1961-04-26 1962-04-24 Magnetrons
GB18456/64A Expired GB1003959A (en) 1961-04-26 1962-04-24 Crossed-field electron discharge tube apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB18456/64A Expired GB1003959A (en) 1961-04-26 1962-04-24 Crossed-field electron discharge tube apparatus

Country Status (5)

Country Link
US (1) US3169211A (en)
DE (1) DE1298195B (en)
GB (2) GB1003958A (en)
NL (1) NL277268A (en)
SE (1) SE309283B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259605B (en) * 1991-09-03 1995-04-19 Burle Technologies Magnetron with cooled pole piece

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1391037A (en) * 1964-01-15 1965-03-05 Lignes Telegraph Telephon Improved method of making anode structures of magnetrons and magnetrons resulting therefrom
US3381168A (en) * 1964-12-01 1968-04-30 Westinghouse Electric Corp Frequency stable coaxial magnetron utilizing low coefficient of thermal expansion material
US3383551A (en) * 1965-02-08 1968-05-14 Westinghouse Electric Corp Coaxial magnetron with improved thermal dissipation
US3441756A (en) * 1965-04-05 1969-04-29 Avco Corp Electrical devices
US3412284A (en) * 1965-10-19 1968-11-19 Sfd Lab Inc Microwave tube apparatus having an improved slot mode absorber
US3443150A (en) * 1966-06-02 1969-05-06 Gen Electric Crossed-field discharge devices and microwave oscillators and amplifiers incorporating the same
US3444429A (en) * 1966-06-29 1969-05-13 Raytheon Co Anode structure for microwave frequency oscillators
US3456151A (en) * 1966-07-27 1969-07-15 Gen Electric Crossed-field discharge device and coupler therefor and microwave circuits incorporating the same
US3534286A (en) * 1967-05-16 1970-10-13 Litton Precision Prod Inc Microwave attenuator comprising aluminum oxide and aluminum titanate usable in a microwave tube
US3471744A (en) * 1967-09-01 1969-10-07 Varian Associates Coaxial magnetron having a segmented ring slot mode absorber
US3582707A (en) * 1970-01-22 1971-06-01 Varian Associates Air cooled coaxial magnetron having an improved arrangement of cooling fins
NL7502972A (en) * 1975-03-13 1976-09-15 Philips Nv VIBRATING CAVE MICROWAVES EQUIPPED WITH A MAGNETIC SYSTEM AND MICROWAVE INTENDED FOR A SUCH COMBINATION.
JPS589537B2 (en) * 1975-09-19 1983-02-21 株式会社日立製作所 magnetron
US4053850A (en) * 1976-09-23 1977-10-11 Varian Associates, Inc. Magnetron slot mode absorber
US4163175A (en) * 1977-01-21 1979-07-31 Tokyo Shibaura Electric Co., Ltd. Magnetron for which leakage of H.F. noise is minimized
GB1587973A (en) * 1978-04-25 1981-04-15 English Electric Valve Co Ltd Co-axial multi cavity anode magnetrons
US4194142A (en) * 1978-07-10 1980-03-18 The United States Of America As Represented By The Secretary Of The Navy Mode control apparatus for a separable-insert coaxial magnetron
GB2081969B (en) * 1980-08-14 1984-04-18 English Electric Valve Co Ltd Suppression of slot modes in co-axial magnetrons
US20050230387A1 (en) * 2004-04-14 2005-10-20 Michael Regan Insulated RF suppressor for industrial magnetrons

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA641020A (en) * 1962-05-08 Otto H. Schade, Sr. Cooling of ceramic tubes
US2482495A (en) * 1943-11-27 1949-09-20 Westinghouse Electric Corp Magnetron
US2734148A (en) * 1950-04-03 1956-02-07 Magnetron tube
GB691139A (en) * 1951-01-08 1953-05-06 English Electric Valve Co Ltd Improvements in or relating to magnetron oscillators
US2821659A (en) * 1954-11-18 1958-01-28 Bell Telephone Labor Inc Magnetron
US2854603A (en) * 1955-05-23 1958-09-30 Bell Telephone Labor Inc Magnetrons
FR1173546A (en) * 1957-04-09 1959-02-26 Thomson Houston Comp Francaise Improvement of the multicavity magnetron with oscillating stabilization circuit in a circular electric field mode
NL246406A (en) * 1958-12-29
US3032680A (en) * 1960-12-29 1962-05-01 Bell Telephone Labor Inc Coaxial cavity magnetron

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259605B (en) * 1991-09-03 1995-04-19 Burle Technologies Magnetron with cooled pole piece

Also Published As

Publication number Publication date
DE1298195B (en) 1969-06-26
NL277268A (en)
US3169211A (en) 1965-02-09
GB1003959A (en) 1965-09-08
SE309283B (en) 1969-03-17

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